uid=ARC,o=lter,dc=ecoinformatics,dc=orgallpublicreadNE14_TS02dot01_tempGround temperature at and near thermokarst sites around Toolik Lake Field Station, Summer 2009-Summer 2012Arctic LTER ProgramMichaelGooseffColorado State UniversityDepartment of Civil and Environmental EngineeringFort CollinsCO80523USArctic LTER ProgramSarahGodseyIdaho State UniversityDepartment of GeosciencesPocatelloID83209USArctic LTER ProgramThe Ecosystems CenterMarine Biological Lab7 MBL StWoods HoleMA02543USA(508) 289 7496arc_im@mbl.eduhttp://ecosystems.mbl.edu/ARC/2012Ground temperatures were measured hourly at ~20-50cm intervals below the ground surface inside and adjacent to thermokarst features in the region around Toolik Field Station. Ground temperatures were measured using Hobo thermistors. Temperatures at 0 and 20cm depths were measured directly in the ground whereas 40cm and deeper measurements were logged from dry wells installed in summer 2009. NE14_TS02dot01_temp is located in the old NE14 thermokarst, downslope.ARCSS/TKground temperatureretrogressive thaw slumpthermokarstToolik Field StationAcceptance and utilization of LTER data requires that:The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publicationsA copy of any resultant publications should be sent to:
Principal Investigator
Ecosystems Center
Marine Biological Laboratory
Woods Hole, MA 02543
http://ecosystems.mbl.edu/ARC/meta_template.php?FileName=./thermokarst/soil/20092012_GT_NE14_TS02dot01.htmlNE 14 Thermokarst149.6264149.626468.678768.67872009-07-172012-08-05Data was maintained by the Gooseff lab during 2009-2012. Some data continues to be collected, please contact the lab for updates.Data ManagerThe Ecosystems CenterMarine Biological Lab7 MBL StWoods HoleMA02543USA(508) 289 7496arc_im@mbl.eduhttp://ecosystems.mbl.edu/ARC/ARC LTERThe Ecosystems CenterMarine Biological Lab7 MBL StWoods HoleMA02543USA(508) 289 7496arc_im@mbl.eduhttp://ecosystems.mbl.edu/ARC/
Ground temperatures were measured hourly at ~20-50cm intervals below the ground surface inside and adjacent to thermokarst features in the region around Toolik Field Station. Ground temperatures were measured using Onset/Hobo thermistors (either 2-channel U23, 4-channel U12, or individual measurements logged in an H23 datalogger). Temperatures at 0 and 20cm depths were measured directly in the ground whereas 40cm and deeper measurements were logged from dry wells installed in summer 2009.
At the Toolik River and I-minus-2 gulley thermokarsts, sites were chosen inside and outside of the thermokarst feature, and at three landscape positions: above the headwall of the thermokarst, at mid-slope, and a low-slope position. At the NE-14 retrogressive thaw slump, sites were chosen according to landscape position (upslope and downslope) at each of three locations (inside the new slump, inside the revegetated scar of the old slump, and outside of both slumps on an adjacent hillslope).
Protocolpers-1Arctic Long-Term Ecological Research (ARC LTER) ProgramGusShaverThe Ecosystems CenterMarine Biological Lab7 MBL StWoods HoleMA02543USA(508) 289 7496gshaver@mbl.eduLead PIJimLaundreThe Ecosystems CenterMarine Biological Lab7 MBL StWoods HoleMA02543USA(508) 289 7496arc_imr@mbl.eduInformation Manager
The goal of Arctic LTER project is to predict the future ecological characteristics of the site based upon our knowledge of the controls of ecosystem structure and function as exerted by physical setting and geologic factors, climatic factors, biotic factors, and the changes in fluxes of water and materials from land to water. To achieve this goal the Arctic LTER uses several approaches:
Long-term monitoring and surveys of natural variation of ecosystem characteristics in space and time. Includes: climate, plant communities and productivity, thaw depth, stream flow, chemistry of streams and lakes, temperatures of streams and lakes, lake chlorophyll lake productivity, zooplankton abundance.
Experimental manipulation of ecosystems for years and decades. Includes: tundra warming, shading, and fertilizing, grazer exclusions, fertilization of lakes and streams, addition and subtraction of predators.
Synthesis of results and predictive modeling at ecosystem and watershed scales. Includes: stream N cycling, lake physics, bioenergetics of fish populations, water movement and transfer of DOC and nutrients from land to water, soil respiration, cycling and storage of C in tundra under different scenarios of future climates.
This material is based upon work supported by the National Science Foundation under Grants #DEB-981022, 9211775, 8702328; #OPP-9911278, 9911681, 9732281, 9615411, 9615563, 9615942, 9615949, 9400722, 9415411, 9318529; #BSR 9019055, 8806635, 8507493. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.The Arctic LTER research site (68°N and 149°W) is in the foothills region of the North Slope of Alaska and includes the entire Toolik Lake watershed and the adjacent watershed of the upper Kuparuk River, down to the confluence of these two watersheds. This area is typical of the northern foothills of the Brooks Range, with continuous permafrost, no trees, a complete snow cover for 7 to 9 months, winter ice cover on lakes, streams, and ocean, and cessation of river flow during the winter. Tussock tundra vegetation of sedges and grasses mixed with dwarf birch and low willows form the dominant vegetation type with areas of drier heath tundra on ridge tops and other well-drained sites as well as areas of river-bottom willow communities.-149.75-149.043368.868.56101360meter20092012_GT_NE14_TS02dot01.csvGround temperature at and near thermokarst sites around Toolik Lake Field Station, Summer 2009-Summer 201220092012_GT_NE14_TS02dot01.csv1\r\ncolumn,"http://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-arc.10474&urlTail=thermokarst/soil/data/20092012_GT_NE14_TS02dot01.csvSite IDSite IDCode to describe location of site at particular thermokarstCode to describe location of site at particular thermokarstYearYearYear that the measurement was takenyyyyMonthMonthMonth that the measurement was taken (1=Jan through 12=Dec)numberrealDayDayDay of the month that the measurement was takennumberrealHourHourHour (0-23 h) that the measurement was takennumberrealMinuteMinuteMinute that the measurement was takennumberrealSecondSecondSecond that the measurement was takennumberreal0cmT0cmTTemperature at 0cm depth in soilcelsiusreal-99999Missing or Not Measured20cmT20cmTTemperature at 20cm depth in soilcelsiusreal-99999Missing or Not Measured40cmT40cmTTemperature at 40cm depth in soilcelsiusreal-99999Missing or Not Measured60cmT60cmTTemperature at 60cm depth in soilcelsiusreal-99999Missing or Not Measured80cmT80cmTTemperature at 80cm depth in soilcelsiusreal-99999Missing or Not Measured100cmT100cmTTemperature at 100cm depth in soilcelsiusreal-99999Missing or Not MeasuredNotesNotesInformation about gap-filling, interpolation, or problematic data pointsInformation about gap-filling, interpolation, or problematic data points2675920092012_GT_NE14_TS02dot01.xlsxAn excel file that has worksheets with the metadata and data.20092012_GT_NE14_TS02dot01.xlsxMicrosoft Excelhttp://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-arc.10474&urlTail=thermokarst/soil/xlsfiles/20092012_GT_NE14_TS02dot01.xlsxMicrosoft Excel file